A Dong Plastic Joint Stock Company

Vietnam hosts A Dong Plastic Joint Stock Company, which currently lists six masterbatch products in its catalogue. The company focuses on polymer masterbatches, specifically filler masterbatches for polypropylene (PP) and polyethylene (PE) as well as a white colour masterbatch. All items fall under the broader masterbatch category used for colour and property modification in plastic processing.

The catalogue includes CALMAST MF530 PP Filler Masterbatch, CALMAST MN570 PP Filler Masterbatch, CALMAST MF550 PP Filler Masterbatch, CALMAST MB130 PE Filler Masterbatch, Calmast MB170 PE Filler Masterbatch, and COLMAST CW1350 White Masterbatch. Each product is identified by its commercial name but no HS code is disclosed in the source data. The product set covers both polypropylene and polyethylene filler applications and a white pigment masterbatch.

The listed masterbatches comprise filler systems for PP and PE, typically loaded with calcium carbonate, talc or silica at 5‑30 % by weight, and a white masterbatch based on titanium dioxide. In the industry, such masterbatches are supplied in standard 25 kg drums or 500 kg bulk bags, with melt flow indices matched to the base polymer (e.g., MFI 2‑10 g/10 min for PP). Common quality grades reference ISO 9001 production systems and compliance with REACH and RoHS for hazardous substances. Buyers typically request technical data sheets that specify filler type, particle size distribution, colour strength (e.g., CIELAB values), and thermal stability. The white masterbatch usually targets a CIELAB L* value above 90 and a TiO₂ loading of 40‑60 % to achieve high opacity.